Spring bed-bottom.



No. 704,674. Patented July I5, I902.

J. F. BROWN.

SPRING BED BOTTOM.

(Application filed Feb. 18, 1902.)

(No Model.)

lkverzzan THE scams Pzrzns co. Pno'rauma. WASHINGTON, n. c

NITED STATES PATENT OFFICE.

JOI-IN FRANKLIN BROWN, OF KNOXVILLE, PENNSYLVANIA.

SPRING BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 704,674, dated July 15,1902.

Application filed February 13, 1902. Serial No. 93,938. (No model.)

T0 (LZZ whom it may concern.-

Be it known that L'JOHN FRANKLIN BRO N, a resident of Knoxville, in thecounty of Allegheny and State of Pennsylvania, have in-- Vented a newand useful Improvement in Spring Bed-Bottoms; and I do hereby declarethe following to be a full, clear, and exact description thereof.

My invention relates to bed-bottoms of the kind provided with helical orsimilar springs; and its object is to provide means for securing saidsprings at their ends, so that they cannot get out of true verticalposition, and in that way greatly increase the life of the springs.

In spring bed-bottoms provided with vertical helical or similar springsit is desirable that the springs be always maintained in a true verticalposition. If they get out of vertical position and are then depressed,their elasticity is soon destroyed and the bed-bottoms soon becomeuneven. At the same time for commercial reasons it is necessary to havethe uniting members for the top and bottom of the helical springs assimple as possible, so as to require little time in tying the springstogether. This is usually done by having tierods running across thesprings and key-rods running transversely to the tie-rods andinterlocking with the springs and tie-rods. The

most common form of tie-rods in present use are provided with loopswhich engage two adjacent springs in such a manner that said springs areheld at three points around their end rings; but this will permit thesprings moving sidewise out of their true vertical positions. V

The object of my invention is to provide connecting means for thesprings which are simple and easy of application, but which willnevertheless hold the springs in a true vertical position. To this endit comprises tierods provided with loops for engaging two adjacentsprings which are so formed that each of the springs will be engaged atfour instead of threepoints, and said loops are provided with books orcrimps which engage the end rings of the springs and prevent the samefrom moving. The ordinary key-rod is employed with these tie-rods.

In the accompanying drawings, Figure 1 is a plan View of a portion of abed-bottom made according to my invention. Fig. 2 is a perspective Viewof a portion thereof, and Fig. 3 is a plan view of a slightly-differentarrangement of parts. i

The bed-bottom is provided with some form of helical springs, thoseshown in the drawings at 1 being of the usual hour-glass type, althoughthey may be cone-shaped or true helices. Each of these springs has theends of the Wire united to the coil, so as to form closed end rings 2.The usual frame 3,com posed of heavy wire or small rods, may beemployed; but this is-not absolutely essential, as the tie and key rodsmay have their ends secured to the outside springs. The springs are setin rows, as shown, and they are united by means of the tie-rods 4: andkey-rods 5, which have their ends connected to the frame S-When thelatter is used and extend across the rows of springs, with the key-rodsat right angles or transversely to the tie-rods. The

tie-rods 4 are provided at intervals with-.lat-

erally-extending loops 6, which have practically parallel arms 7, unitedat their outer ends by the cross-bar 8. These loops extend through theend ring 2 of one row of springs and project over the end ring 2 of theadjacent row of springs, and the arms 7 of said loops are provided neartheir outer ends with the crimps or hooks9, which take over the endring'2 of the springs and prevent the same from moving laterally. Thecross-bars 8 are also provided near their middle with a crimp or bend10, which is made in the opposite direction from the crimps 'or hooks 9.As shown in Figs. 1 and 2, the loops'of the tie-rods are threaded downthrough the top of one row of'springs and extend over the tops of thenext adjacent row of springs. Then the key-rods 5 are inserted, passingover the ring 2 on one side of the spring and under the ring at theopposite side thereof, but passing over the'cross-bar 8-and lying in thecrimp 10 thereof. The terms over and under are here used onlyrelatively, for on the bottom of the springs, as shown in Fig. 2, justthe reverse'occurs. Fig. '3 shows a slightly different arrangement, inwhich the loop 6 passes up through the end ring 2 of one spring andextends under the corresponding ring of the next adjacent spring, andthe keyrod passes over the ring 2 adjacent to the crimp 10 and under thesame ring on the opposite side. In Fig. 2 I have shown this arrangementof tie and key rods both at the top and bottom of the mattress; but itwill be understood that it need be used only at the top, the lower endsof thesprings being held or supported in any convenient manner. The endrows of springs will be united to the frame 3 by ordinary tie-wires 11and lo 12, as is now the practice.

With my form of tie-rod and loop the crimp will hold the loop frommoving sidewise on the key-rod 5, while the crimps 9 prevent the endring of the spring from moving to- 15 ward or away from the nextadjacent spring, and as each end ring is engaged at four points at 13,14, 15, and 16, which are a considerable distance from each other, it ispractically impossible for the same to move sidewise, and the springswill be held in a true vertical position. As a consequence any weight onthe springs will bear the same down in a straight line and their lifewill be greatly increased.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In a bed-bottom, the combination with helical springs arranged inrows and having their ends formed into rings, tie-rods extending acrosssaid springs, said tie-rods being provided with laterally-extendingloops having substantially parallel arms and a crossbar uniting theirouter ends, said cross-bar being provided with a bend or crimp near itsmiddle and having straight portions on either side otjsaid crimp, saidloops extending through two adjacent, springs and engaging -;each at twopoints, and key-rods arranged transversely to the. tie-rods andextending .-.o along said springs and through said loops and-beingengaged by the crimp in the crossbar.- I 1 2. In a bed-bottom, thecombination with helical springs arranged in rows and having 05 theirends formed into rings, tie-rods extending across said springs, saidtie-rods'being provided with laterally-extending loopshavwingsubstantially parallel arms and a crossbarnnitin-g their outerends, said loops extending through two adjacent springs and engagingeachat two points and being provided with crimps or hooks near their outerends wlhere. theyengage the springs, and key-rods arranged transverselyto the tie-rods and ex- 5 5 tending along said springs and throughsaidloops.

Ina bed-bottom, the combination with 'helical' springs arranged in rowsand having their ends formed into rings, tie-rods extend- 6o ing acrosssaid springs, said tie-rods being provided with laterally-extendingloops having substantially parallel arms and a crossbar uniting theirouter ends, said arms being provided near their outer ends with crimpsor bends, and said cross-bar being also provided with a bend or crimp inthe opposite direction, said loops extending through two adjacentsprings and engaging each at two points and having the crimps near theouter ends of the arms engaging one of the springs, and key-rodsarranged transversely to the tie-rods and extending along said springsand through said loops and being engaged by the bend or crimp in thecross-bar.

4. In a bed-bottom,the combination with helical springs arranged in rowsand having their ends formed into rings, tie-rods extending across saidsprings, said tie-rods being provided with lateral loops extendingthrough two adjacent springs and engaging each at two points and beingprovided with crimps or hooks near their outer ends where they engagethe end rings of the springs, and keyrods arranged transveresly to thetierods and extending along said springs and through 8-5 said loops.

5. In a bed-bottom, the combination with helical springs arranged inrows and having their ends formed into rings, tie-rods extending acrosssaid springs, said tie-rods being provided with lateral loops exten dingthrough two adjacent springs and engaging each at two points and beingprovided with crimps or hooks near their outer ends where they engagethe end rings of said springs, and key- 9 5- rods arranged transverselyto the tie-rods and extending over the end rings of the springs on oneside thereof, under the same on the opposite side thereof and throughsaid loops.

6. In a bed-bottom, the combination with helical springs arranged inrows and having both of their ends formed into rings, tie-rods extendingacross said springs both at the top and bottom thereof, said tie-rodsbeing provided with lateral loops extending through two adjacent springsand engaging each at two points and being provided with crimps or hooksnear their outer ends where they engage the end rings of the springs,and keyrods arranged transversely to the tie-rods both at the top andbottom of the springs and extending along said springs and through saidloops.

In testimony whereof I, the said JOHN FRANKLIN BROWN, have hereunto setmy 11 5 hand.

JOHN FRANKLIN BROWN.

Witnesses:

G. G. RAYMOND, ROBERT C. TOTTEN.

